Send exception notifications by email

Gemfile

@@ -28,6 +28,7 @@ gem 'mini_magick'
 gem 'routing_concerns'
 gem 'deep_cloneable', '~> 1.5.5'
 gem 'rails_config'
+gem "exception_notification", "~> 4.0"
 
 # Gems used only for assets and not required
 # in production environments by default.

Gemfile.lock

@@ -103,6 +103,9 @@ GEM
       json
     erubis (2.7.0)
     eventmachine (1.0.3)
+    exception_notification (4.0.1)
+      actionmailer (>= 3.0.4)
+      activesupport (>= 3.0.4)
     execjs (1.4.0)
       multi_json (~> 1.0)
     factory_girl (2.1.2)
@@ -297,6 +300,7 @@ DEPENDENCIES
   devise-encryptable
   dropbox-sdk
   erubis
+  exception_notification (~> 4.0)
   factory_girl (~> 2.1.0)
   factory_girl_rails
   google-analytics-rails

app/controllers/application_controller.rb

@@ -6,6 +6,7 @@ class ApplicationController < ActionController::Base
   protect_from_forgery # See ActionController::RequestForgeryProtection for details
   clear_helpers
   before_filter :set_current_semester
+  before_filter :log_additional_data
 
   rescue_from CanCan::AccessDenied do |exception|
     raise exception if Rails.env.development?
@@ -75,4 +76,13 @@ def current_ability
     @current_ability ||= Ability.new(current_user, params)
   end
 
+  def log_additional_data
+    request.env['exception_notifier.exception_data'] = {
+      current_user: (current_user if user_signed_in?),
+      current_semester: current_semester,
+      current_faculty: (current_faculty if session[:current_faculty_id].present?),
+      current_department: (current_department if session[:current_department_id].present?),
+    }
+  end
+
 end

config/environments/production.rb

@@ -37,6 +37,8 @@
 
   # Disable delivery errors, bad email addresses will be ignored
   # config.action_mailer.raise_delivery_errors = false
+  config.action_mailer.perform_deliveries = true
+  config.action_mailer.raise_delivery_errors = true
 
   # Enable threaded mode
   # config.threadsafe!
@@ -56,4 +58,6 @@
 
   GA.tracker = Settings.analytics.id
 
+  config.middleware.use ExceptionNotification::Rack, Settings.exception_notification.to_hash
+
 end

config/initializers/mailer.rb

@@ -0,0 +1,8 @@
+# It's required for links generation in emails
+Taurus::Application.config.action_mailer.default_url_options = { host: 'taurus.amursu.ru' }
+
+Taurus::Application.config.action_mailer.default_url_options = { :host => 'localhost:3000' } if Rails.env.development?
+
+Taurus::Application.config.action_mailer.delivery_method = :smtp
+
+Taurus::Application.config.action_mailer.smtp_settings = Settings.mailer

config/settings.yml.example

@@ -5,6 +5,14 @@ mailer:
 analytics:
   id: UA-39782423-3
 
+exception_notification:
+  email:
+    email_prefix: "[TAURUS ERROR] "
+    sender_address:  '"Taurus notifications" <[email protected]>'
+    exception_recipients: 
+      - [email protected]
+      - [email protected]
+
 backup:
   server:
     username:  user