From 97201e0bca203b6b303789374ffd7e4228e062a7 Mon Sep 17 00:00:00 2001
From: Matthew Lemon <y@yulqen.org>
Date: Mon, 11 Nov 2024 16:19:44 +0000
Subject: initial after migration

---
 app/controllers/concerns/authentication.rb | 55 ++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 app/controllers/concerns/authentication.rb

(limited to 'app/controllers/concerns/authentication.rb')

diff --git a/app/controllers/concerns/authentication.rb b/app/controllers/concerns/authentication.rb
new file mode 100644
index 0000000..771b21d
--- /dev/null
+++ b/app/controllers/concerns/authentication.rb
@@ -0,0 +1,55 @@
+module Authentication
+  extend ActiveSupport::Concern
+
+  included do
+    before_action :require_authentication
+    helper_method :authenticated?
+  end
+
+  class_methods do
+    def allow_unauthenticated_access(**options)
+      skip_before_action :require_authentication, **options
+    end
+  end
+
+  private
+    def authenticated?
+      resume_session
+    end
+
+    def require_authentication
+      resume_session || request_authentication
+    end
+
+
+    def resume_session
+      Current.session ||= find_session_by_cookie
+    end
+
+    def find_session_by_cookie
+      Session.find_by(id: cookies.signed[:session_id])
+    end
+
+
+    def request_authentication
+      session[:return_to_after_authenticating] = request.url
+      redirect_to new_session_path
+    end
+
+    def after_authentication_url
+      session.delete(:return_to_after_authenticating) || root_url
+    end
+
+
+    def start_new_session_for(user)
+      user.sessions.create!(user_agent: request.user_agent, ip_address: request.remote_ip).tap do |session|
+        Current.session = session
+        cookies.signed.permanent[:session_id] = { value: session.id, httponly: true, same_site: :lax }
+      end
+    end
+
+    def terminate_session
+      Current.session.destroy
+      cookies.delete(:session_id)
+    end
+end
-- 
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