Safetynet

Stop communication problems before they happen

Safetynet keeps track of email communications by user/email and ActionMailer message. If the same message is sent to the same user multiple times within the allowed timeframe, it will be blocked from delivery and notify system admins. The messages are filterable in a way similar to controller filters, and the checking method can be called by itself outside the normal hooks for additional throttling (i.e. SMS sending, push notifications, etc.).

Add this line to your application's Gemfile:

gem 'safetynet'

And then execute:

$ bundle
$ rails generate safetynet
$ rake db:migrate

The generator creates two files:

1. a file under config/initializers/safetynet.rb configuring Safetynet with project-specific settings.
2. a migration file to create the safetynet_histories table

###Applied to a mailer

Add the safetynet method to an ActionMailer::Base class with the following structure:

safetynet({
  channel,
  filters,
  options: {
    email: {
      limit: 1,
      timeframe: 30.minutes
    }
  }
})

And a description of each:

Note: Defaults to configured channel, method, and Safetynet configuration limit & timeframe for the channel

####Example:

class UserMailer < ActionMailer::Base
  include Safetynet
  safetynet :email, {except: [:user_registration_email, :forgot_password_email]}
end

###Standalone usage on a class

####Example:

class User < ActiveRecord::Base
  include Safetynet
safetynet :sms

  def send_sms
    if permit_delivery?(self)
      ...
    end
  end
end

1. Create an issue
2. Fork it ( https://github.com/arktisklada/safetynet/fork )
3. Create your feature branch (git checkout -b my-new-feature)
4. Commit your changes (git commit -am 'Add some feature')
5. Push to the branch (git push origin my-new-feature)
6. Create a new Pull Request