docbrown/app/controllers/omniauth_callbacks_controller.rb
rhymes 8407bf9b4e
[deploy] Authentication refactoring: cleanups (#7576)
* Use Devise registry to list available providers

* Cleanups following Devise+Omniauth docs

* More cleanups

* Use helpers

* More cleanups

* Oops, forgot to remove these specs
2020-04-29 10:33:30 -04:00

99 lines
3.7 KiB
Ruby

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
include Devise::Controllers::Rememberable
# Called upon successful redirect from Twitter
def twitter
callback_for(:twitter)
end
# Called upon successful redirect from GitHub
def github
callback_for(:github)
end
# Callback for third party failures (shared by all providers)
def failure
error = request.env["omniauth.error"]
class_name = error.present? ? error.class.name : ""
DatadogStatsClient.increment(
"omniauth.failure",
tags: [
"class:#{class_name}",
"message:#{error&.message}",
"reason:#{error.try(:error_reason)}",
"type:#{error.try(:error)}",
"uri:#{error.try(:error_uri)}",
"provider:#{request.env['omniauth.strategy'].name}",
"origin:#{request.env['omniauth.strategy.origin']}",
"params:#{request.env['omniauth.params']}",
],
)
super
end
private
def callback_for(provider)
auth_payload = request.env["omniauth.auth"]
cta_variant = request.env["omniauth.params"]["state"].to_s
@user = Authentication::Authenticator.call(
auth_payload,
current_user: current_user,
cta_variant: cta_variant,
)
if user_persisted_and_valid?
# Devise's Omniauthable does not automatically remember users
# see <https://github.com/heartcombo/devise/wiki/Omniauthable,-sign-out-action-and-rememberable>
remember_me(@user)
set_flash_message(:notice, :success, kind: provider.to_s.titleize) if is_navigational_format?
# `event: authentication` is only needed for Warden callbacks
# see <config/initializers/persistent_csrf_token_cookie.rb>
sign_in_and_redirect(@user, event: :authentication)
# NOTE: I can't find a way to test this path
# as `User` will assign a temporary username if the username already exists
# see https://github.com/thepracticaldev/dev.to/blob/27131f6f420df347a467f8e9afc84a6af2fcb13a/app/models/user.rb#L532-L555
elsif user_persisted_but_username_taken?
redirect_to "/settings?state=previous-registration"
# NOTE: I can't find a way to test this path
# as `Authentication::Authenticator.call` invokes `User.save!` which will
# raise errors for a validation error.
# In the past we had 1 path (update_user) which would have ended up
# here in case of validation errors, see:
# https://github.com/thepracticaldev/dev.to/blob/80737b540453afe8775128cb37bd379b7c09c7e8/app/services/authorization_service.rb#L77
else
# Devise will clean this data when the user is not persisted
session["devise.#{provider}_data"] = request.env["omniauth.auth"]
user_errors = @user.errors.full_messages
Rails.logger.error("Log in error: sign in failed. username: #{@user.username} - email: #{@user.email}")
Rails.logger.error("Log in error: auth data hash - #{request.env['omniauth.auth']}")
Rails.logger.error("Log in error: auth data hash - #{request.env['omniauth.error']&.inspect}")
Rails.logger.error("Log in error: user_errors: #{user_errors}")
flash[:alert] = user_errors
redirect_to new_user_registration_url
end
rescue StandardError => e
Rails.logger.error("Log in error: #{e}")
Rails.logger.error("Log in error: auth data hash - #{request.env['omniauth.auth']}")
Rails.logger.error("Log in error: auth data hash - #{request.env['omniauth.error']&.inspect}")
flash[:alert] = "Log in error: #{e}"
redirect_to new_user_registration_url
end
def user_persisted_and_valid?
@user.persisted? && @user.valid?
end
def user_persisted_but_username_taken?
@user.persisted? && @user.errors.full_messages.join(", ").include?("username has already been taken")
end
end