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AuthTrail

Track Devise login activity

🍊 Battle-tested at Instacart

Build Status

Installation

Add this line to your application’s Gemfile:

gem "authtrail"

To encrypt email and IP addresses with Lockbox, install Lockbox and Blind Index and run:

rails generate authtrail:install --encryption=lockbox
rails db:migrate

To use Active Record encryption (Rails 7+, experimental), run:

rails generate authtrail:install --encryption=activerecord
rails db:migrate

If you prefer not to encrypt data, run:

rails generate authtrail:install --encryption=none
rails db:migrate

To enable geocoding, see the Geocoding section.

How It Works

A LoginActivity record is created every time a user tries to login. You can then use this information to detect suspicious behavior. Data includes:

  • scope - Devise scope
  • strategy - Devise strategy
  • identity - email address
  • success - whether the login succeeded
  • failure_reason - if the login failed
  • user - the user if the login succeeded
  • context - controller and action
  • ip - IP address
  • user_agent and referrer - from browser
  • city, region, country, latitude, and longitude - from IP
  • created_at - time of event

Features

Exclude certain attempts from tracking - useful if you run acceptance tests

AuthTrail.exclude_method = lambda do |data|
  data[:identity] == "capybara@example.org"
end

Add or modify data - also add new fields to the login_activities table if needed

AuthTrail.transform_method = lambda do |data, request|
  data[:request_id] = request.request_id
end

Store the user on failed attempts

AuthTrail.transform_method = lambda do |data, request|
  data[:user] ||= User.find_by(email: data[:identity])
end

Write data somewhere other than the login_activities table

AuthTrail.track_method = lambda do |data|
  # code
end

Use a custom identity method

AuthTrail.identity_method = lambda do |request, opts, user|
  if user
    user.email
  else
    request.params.dig(opts[:scope], :email)
  end
end

Associate login activity with your user model

class User < ApplicationRecord
  has_many :login_activities, as: :user # use :user no matter what your model name
end

The LoginActivity model uses a polymorphic association so it can be associated with different user models.

Geocoding

AuthTrail uses Geocoder for geocoding. We recommend configuring local geocoding or load balancer geocoding so IP addresses are not sent to a 3rd party service. If you do use a 3rd party service and adhere to GDPR, be sure to add it to your subprocessor list.

To enable geocoding, add this line to your application’s Gemfile:

gem "geocoder"

And update config/initializers/authtrail.rb:

AuthTrail.geocode = true

Geocoding is performed in a background job so it doesn’t slow down web requests. Set the job queue with:

AuthTrail.job_queue = :low_priority

Local Geocoding

For privacy and performance, we recommend geocoding locally. Add this line to your application’s Gemfile:

gem "maxminddb"

For city-level geocoding, download the GeoLite2 City database and create config/initializers/geocoder.rb with:

Geocoder.configure(
  ip_lookup: :geoip2,
  geoip2: {
    file: "path/to/GeoLite2-City.mmdb"
  }
)

For country-level geocoding, install the geoip-database package. It’s preinstalled on Heroku. For Ubuntu, use:

sudo apt-get install geoip-database

And create config/initializers/geocoder.rb with:

Geocoder.configure(
  ip_lookup: :maxmind_local,
  maxmind_local: {
    file: "/usr/share/GeoIP/GeoIP.dat",
    package: :country
  }
)

Load Balancer Geocoding

Some load balancers can add geocoding information to request headers.

AuthTrail.geocode = false

AuthTrail.transform_method = lambda do |data, request|
  data[:country] = request.headers["<country-header>"]
  data[:region] = request.headers["<region-header>"]
  data[:city] = request.headers["<city-header>"]
end

Check out this example

Data Retention

Delete older data with:

LoginActivity.where("created_at < ?", 2.years.ago).in_batches.delete_all

Delete data for a specific user with:

LoginActivity.where(user_id: 1, user_type: "User").in_batches.delete_all

Other Notes

We recommend using this in addition to Devise’s Lockable module and Rack::Attack.

Check out Hardening Devise and Secure Rails for more best practices.

Upgrading

0.4.0

There are two notable changes to geocoding:

  1. Geocoding is now disabled by default (this was already the case for new installations with 0.3.0+). Check out the instructions for how to enable it (you may need to create config/initializers/authtrail.rb).

  2. The geocoder gem is now an optional dependency. To use geocoding, add it to your Gemfile:

gem "geocoder"

0.2.0

To store latitude and longitude, create a migration with:

add_column :login_activities, :latitude, :float
add_column :login_activities, :longitude, :float

History

View the changelog

Contributing

Everyone is encouraged to help improve this project. Here are a few ways you can help:

To get started with development and testing:

git clone https://github.com/ankane/authtrail.git
cd authtrail
bundle install
bundle exec rake test

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Track Devise login activity

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