if Object.const_defined?(:Rails) and Rails.const_defined?(:Railtie)

# @api private

class Railtie < Rails::Railtie

# configure our plugin on boot. other extension points such

# as configuration, rake tasks, etc, are also available

initializer "aws-sdk.initialize" do |app|

AWS::Rails.setup

end

end

end

# A handful of useful Rails integration methods.

#

# If you require this gem inside a Rails application (via config.gem

# for rails 2 and bundler for rails 3) then {setup} is called

# automatically.

module Rails

# Adds extra functionality to Rails.

#

# Normally this method is invoked automatically when you require this

# gem in a Rails Application:

#

# Rails 3+ (RAILS_ROOT/Gemfile)

#

# gem 'aws-sdk'

#

# Rails 2.1 - 2.3 (RAILS_ROOT/config/environment.rb)

#

# config.gem 'aws-sdk'

#

# @return [nil]

def self.setup

load_yaml_config

add_action_mailer_delivery_method

log_to_rails_logger

nil

end

# Loads AWS configuration options from `RAILS_ROOT/config/aws.yml`.

#

# This configuration file is optional. You can omit this file and instead

# use ruby to configure AWS inside a configuration initialization script

# (e.g. RAILS_ROOT/config/intializers/aws.rb).

#

# If you have a yaml configuration file it should be formatted like the

# standard `database.yml` file in a Rails application. This means there

# should be one section for Rails environment:

#

# development:

# access_key_id: YOUR_ACCESS_KEY_ID

# secret_access_key: YOUR_SECRET_ACCESS_KEY

# simple_db_consistent_reads: false

#

# production:

# access_key_id: YOUR_ACCESS_KEY_ID

# secret_access_key: YOUR_SECRET_ACCESS_KEY

# simple_db_consistent_reads: true

#

# You should also consider DRYing up your configuration file using

# YAML references:

#

# development:

# access_key_id: YOUR_ACCESS_KEY_ID

# secret_access_key: YOUR_SECRET_ACCESS_KEY

# simple_db_consistent_reads: false

#

# production:

# <<: *development

# simple_db_consistent_reads: true

#

# The yaml file will also be ERB parsed so you can use ruby inside of it:

#

# development:

# access_key_id: YOUR_ACCESS_KEY_ID

# secret_access_key: <%= read_secret_from_a_secure_location %>

# simple_db_consistent_reads: false

#

# production:

# <<: *development

# simple_db_consistent_reads: true

#

def self.load_yaml_config

path = Pathname.new("#{rails_root}/config/aws.yml")

if File.exist?(path)

cfg = YAML::load(ERB.new(File.read(path)).result)

unless cfg[rails_env]

raise "config/aws.yml is missing a section for `#{rails_env}`"

end

AWS.config(cfg[rails_env])

end

end

# Adds a delivery method to ActionMailer that uses

# {AWS::SimpleEmailService}.

#

# Once you have an SES delivery method you can configure Rails to

# use this for ActionMailer in your environment configuration

# (e.g. RAILS_ROOT/config/environments/production.rb)

#

# config.action_mailer.delivery_method = :amazon_ses

#

# ### Defaults

#

# Normally you don't need to call this method. By default a delivery method

# named `:amazon_ses` is added to ActionMailer::Base. This delivery method

# uses your default configuration (#{AWS.config}).

#

# ### Custom SES Options

#

# If you need to supply configuration values for SES that are different than

# those in {AWS.config} then you can pass those options:

#

# AWS::Rails.add_action_mailer_delivery_method(:ses, custom_options)

#

# @param [Symbol] name (:amazon_ses) The name of the delivery

# method. The name used here should be the same as you set in

# your environment config. If you name the delivery method

# `:amazon_ses` then you could do something like this in your

# config/environments/ENV.rb file:

#

# config.action_mailer.delivery_method = :amazon_ses

#

# @param [Hash] options A hash of options that are passes to

# {AWS::SimpleEmailService#new} before delivering email.

#

# @return [nil]

#

def self.add_action_mailer_delivery_method name = :amazon_ses, options = {}

if ::Rails.version.to_s >= '3.0'

ActiveSupport.on_load(:action_mailer) do

self.add_delivery_method(name, AWS::SimpleEmailService, options)

end

elsif defined?(::ActionMailer)

amb = ::ActionMailer::Base

amb.send(:define_method, "perform_delivery_#{name}") do |mail|

AWS::SimpleEmailService.new(options).send_raw_email(mail)

end

end

nil

end

# Configures AWS to log to the Rails default logger.

# @return [nil]

def self.log_to_rails_logger

AWS.config(:logger => rails_logger)

nil

end

# @api private

protected

def self.rails_env

::Rails.respond_to?(:env) ? ::Rails.env : RAILS_ENV

end

# @api private

protected

def self.rails_root

::Rails.respond_to?(:root) ? ::Rails.root.to_s : RAILS_ROOT

end

# @api private

protected

def self.rails_logger

::Rails.respond_to?(:logger) ? ::Rails.logger : ::RAILS_DEFAULT_LOGGER

end

end