100 lines
2.8 KiB
Ruby
100 lines
2.8 KiB
Ruby
module Authentication
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extend ActiveSupport::Concern
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included do
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before_action :require_authentication
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helper_method :authenticated?
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end
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class_methods do
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def allow_unauthenticated_access(**options)
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skip_before_action :require_authentication, **options
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end
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end
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private
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def authenticated?
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resume_session
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end
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def require_authentication
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resume_session || request_authentication
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end
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def resume_session
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Current.session ||= find_session_by_cookie
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end
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def find_session_by_cookie
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Session.find_by(id: cookies.signed[:session_id]) if cookies.signed[:session_id]
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end
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def request_authentication
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session[:return_to_after_authenticating] = request.url
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redirect_to new_session_path
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end
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def after_authentication_url
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session.delete(:return_to_after_authenticating) || root_url
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end
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def start_new_session_for(user)
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user.sessions.create!(user_agent: request.user_agent, ip_address: request.remote_ip).tap do |session|
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Current.session = session
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# Extract root domain for cross-subdomain cookies (required for forward auth)
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domain = extract_root_domain(request.host)
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cookie_options = {
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value: session.id,
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httponly: true,
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same_site: :lax,
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secure: Rails.env.production?
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}
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# Set domain for cross-subdomain authentication if we can extract it
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cookie_options[:domain] = domain if domain.present?
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cookies.signed.permanent[:session_id] = cookie_options
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end
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end
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def terminate_session
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Current.session.destroy
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cookies.delete(:session_id)
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end
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# Extract root domain for cross-subdomain cookies
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# Examples:
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# - clinch.aapamilne.com -> .aapamilne.com
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# - app.example.co.uk -> .example.co.uk
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# - localhost -> nil (no domain setting for local development)
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def extract_root_domain(host)
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return nil if host.blank? || host.match?(/^(localhost|127\.0\.0\.1|::1)$/)
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# Split hostname into parts
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parts = host.split('.')
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# For normal domains like example.com, we need at least 2 parts
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# For complex domains like co.uk, we need at least 3 parts
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return nil if parts.length < 2
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# Extract root domain with leading dot for cross-subdomain cookies
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if parts.length >= 3
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# Check if it's a known complex TLD
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complex_tlds = %w[co.uk com.au co.nz co.za co.jp]
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second_level = "#{parts[-2]}.#{parts[-1]}"
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if complex_tlds.include?(second_level)
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# For complex TLDs, include more parts: app.example.co.uk -> .example.co.uk
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root_parts = parts[-3..-1]
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return ".#{root_parts.join('.')}"
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end
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end
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# For regular domains: app.example.com -> .example.com
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root_parts = parts[-2..-1]
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".#{root_parts.join('.')}"
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end
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end
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