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73 lines
3 KiB
Ruby
73 lines
3 KiB
Ruby
# frozen_string_literal: true
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require 'omniauth/strategies/custom_azure_active_directory'
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AZURE_SETUP_PROC = lambda do |env|
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settings = ApplicationSettings.instance
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providers = settings.values['azure_ad_apps'].select { |v| v['enable_sign_in'] }
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raise StandardError, 'No Azure AD config available for sign in' if providers.blank?
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req = Rack::Request.new(env)
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if providers.size > 1
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if req.params['id_token'].present? # Callback phase
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unverified_jwt_payload, = JWT.decode(req.params['id_token'], nil, false)
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provider_conf = providers.select { |v| v['app_id'] == unverified_jwt_payload['aud'] }
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else # Authorization phase
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raise ActionController::ParameterMissing, 'Provider name is missing' if req.params['provider'].blank?
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provider_conf = providers.find { |v| v['provider_name'] == req.params['provider'] }
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end
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raise StandardError, 'No Azure AD config available for sign in' if provider_conf.blank?
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end
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provider_conf ||= providers.first
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env['omniauth.strategy'].options[:client_id] = provider_conf['app_id']
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env['omniauth.strategy'].options[:client_secret] = provider_conf['client_secret']
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env['omniauth.strategy'].options[:tenant_id] = provider_conf['tenant_id']
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env['omniauth.strategy'].options[:sign_in_policy] = provider_conf['sign_in_policy']
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env['omniauth.strategy'].options[:name] = 'customazureactivedirectory'
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conf_uri = URI.parse(provider_conf['conf_url'])
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env['omniauth.strategy'].options[:base_azure_url] = "#{conf_uri.scheme || 'https'}://#{conf_uri.host}"
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end
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OKTA_SETUP_PROC = lambda do |env|
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settings = ApplicationSettings.instance
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provider_conf = settings.values['okta']
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raise StandardError, 'No Okta config available for sign in' if provider_conf.blank?
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oauth2_base_url =
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if provider_conf['auth_server_id'].blank?
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"https://#{provider_conf['domain']}/oauth2"
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else
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"https://#{provider_conf['domain']}/oauth2/#{provider_conf['auth_server_id']}"
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end
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client_options = {
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site: "https://#{provider_conf['domain']}",
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authorize_url: "#{oauth2_base_url}/v1/authorize",
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token_url: "#{oauth2_base_url}/v1/token",
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user_info_url: "#{oauth2_base_url}/v1/userinfo"
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}
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client_options[:audience] = provider_conf['audience'] if provider_conf['audience'].present?
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if provider_conf['auth_server_id'].present?
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client_options[:authorization_server] = provider_conf['auth_server_id']
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client_options[:use_org_auth_server] = false
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else
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client_options[:use_org_auth_server] = true
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end
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env['omniauth.strategy'].options[:client_id] = provider_conf['client_id']
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env['omniauth.strategy'].options[:client_secret] = provider_conf['client_secret']
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env['omniauth.strategy'].options[:client_options] = client_options
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end
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Rails.application.config.middleware.use OmniAuth::Builder do
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provider OmniAuth::Strategies::CustomAzureActiveDirectory, setup: AZURE_SETUP_PROC
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end
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Rails.application.config.middleware.use OmniAuth::Builder do
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provider OmniAuth::Strategies::Okta, setup: OKTA_SETUP_PROC
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end
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OmniAuth.config.logger = Rails.logger
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