100 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			100 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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# Be sure to restart your server when you modify this file.
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# Define an application-wide content security policy.
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# See the Securing Rails Applications Guide for more information:
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# https://guides.rubyonrails.org/security.html#content-security-policy-header
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require_relative '../../app/lib/content_security_policy'
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policy = ContentSecurityPolicy.new
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assets_host = policy.assets_host
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media_host = policy.media_host
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def sso_host
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  return unless ENV['ONE_CLICK_SSO_LOGIN'] == 'true'
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  return unless ENV['OMNIAUTH_ONLY'] == 'true'
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  return unless Devise.omniauth_providers.length == 1
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  provider = Devise.omniauth_configs[Devise.omniauth_providers[0]]
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  @sso_host ||= begin
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    case provider.provider
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    when :cas
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      provider.cas_url
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    when :saml
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      provider.options[:idp_sso_target_url]
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    when :openid_connect
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      provider.options.dig(:client_options, :authorization_endpoint) || OpenIDConnect::Discovery::Provider::Config.discover!(provider.options[:issuer]).authorization_endpoint
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    end
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  end
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end
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Rails.application.config.content_security_policy do |p|
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  p.base_uri        :none
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  p.default_src     :none
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  p.frame_ancestors :none
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  p.font_src        :self, assets_host
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  p.img_src         :self, :https, :data, :blob, assets_host
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  p.style_src       :self, assets_host
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  p.media_src       :self, :https, :data, assets_host
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  p.frame_src       :self, :https
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  p.manifest_src    :self, assets_host
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  if sso_host.present?
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    p.form_action     :self, sso_host
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  else
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    p.form_action     :self
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  end
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  p.child_src       :self, :blob, assets_host
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  p.worker_src      :self, :blob, assets_host
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  if Rails.env.development?
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    webpacker_public_host = ENV.fetch('WEBPACKER_DEV_SERVER_PUBLIC', Webpacker.config.dev_server[:public])
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    webpacker_urls = %w(ws http).map { |protocol| "#{protocol}#{Webpacker.dev_server.https? ? 's' : ''}://#{webpacker_public_host}" }
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    p.connect_src :self, :data, :blob, assets_host, media_host, Rails.configuration.x.streaming_api_base_url, *webpacker_urls
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    p.script_src  :self, :unsafe_inline, :unsafe_eval, assets_host
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  else
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    p.connect_src :self, :data, :blob, assets_host, media_host, Rails.configuration.x.streaming_api_base_url
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    p.script_src  :self, assets_host, "'wasm-unsafe-eval'"
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  end
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end
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# Report CSP violations to a specified URI
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# For further information see the following documentation:
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# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
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# Rails.application.config.content_security_policy_report_only = true
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Rails.application.config.content_security_policy_nonce_generator = ->(request) { SecureRandom.base64(16) }
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Rails.application.config.content_security_policy_nonce_directives = %w(style-src)
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Rails.application.reloader.to_prepare do
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  PgHero::HomeController.content_security_policy do |p|
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    p.script_src :self, :unsafe_inline, assets_host
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    p.style_src  :self, :unsafe_inline, assets_host
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  end
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  PgHero::HomeController.after_action do
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    request.content_security_policy_nonce_generator = nil
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  end
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  if Rails.env.development?
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    LetterOpenerWeb::LettersController.content_security_policy do |p|
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      p.child_src       :self
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      p.connect_src     :none
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      p.frame_ancestors :self
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      p.frame_src       :self
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      p.script_src      :unsafe_inline
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      p.style_src       :unsafe_inline
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      p.worker_src      :none
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    end
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    LetterOpenerWeb::LettersController.after_action do |p|
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      request.content_security_policy_nonce_directives = %w(script-src)
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    end
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  end
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end
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