Gab Social. All are welcome.

app/models/session_activation.rb

@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+# == Schema Information
+#
+# Table name: session_activations
+#
+#  id                       :bigint(8)        not null, primary key
+#  session_id               :string           not null
+#  created_at               :datetime         not null
+#  updated_at               :datetime         not null
+#  user_agent               :string           default(""), not null
+#  ip                       :inet
+#  access_token_id          :bigint(8)
+#  user_id                  :bigint(8)        not null
+#  web_push_subscription_id :bigint(8)
+#
+
+class SessionActivation < ApplicationRecord
+  belongs_to :user, inverse_of: :session_activations
+  belongs_to :access_token, class_name: 'Doorkeeper::AccessToken', dependent: :destroy, optional: true
+  belongs_to :web_push_subscription, class_name: 'Web::PushSubscription', dependent: :destroy, optional: true
+
+  delegate :token,
+           to: :access_token,
+           allow_nil: true
+
+  def detection
+    @detection ||= Browser.new(user_agent)
+  end
+
+  def browser
+    detection.id
+  end
+
+  def platform
+    detection.platform.id
+  end
+
+  before_create :assign_access_token
+  before_save   :assign_user_agent
+
+  class << self
+    def active?(id)
+      id && where(session_id: id).exists?
+    end
+
+    def activate(**options)
+      activation = create!(options)
+      purge_old
+      activation
+    end
+
+    def deactivate(id)
+      return unless id
+      where(session_id: id).destroy_all
+    end
+
+    def purge_old
+      order('created_at desc').offset(Rails.configuration.x.max_session_activations).destroy_all
+    end
+
+    def exclusive(id)
+      where('session_id != ?', id).destroy_all
+    end
+  end
+
+  private
+
+  def assign_user_agent
+    self.user_agent = '' if user_agent.nil?
+  end
+
+  def assign_access_token
+    superapp = Doorkeeper::Application.find_by(superapp: true)
+
+    self.access_token = Doorkeeper::AccessToken.create!(application_id: superapp&.id,
+                                                        resource_owner_id: user_id,
+                                                        scopes: 'read write follow',
+                                                        expires_in: Doorkeeper.configuration.access_token_expires_in,
+                                                        use_refresh_token: Doorkeeper.configuration.refresh_token_enabled?)
+  end
+end