81 lines
3.0 KiB
Ruby
81 lines
3.0 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
# Define an application-wide content security policy
|
|
# For further information see the following documentation
|
|
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
|
|
|
|
def host_to_url(str)
|
|
"http#{Rails.configuration.x.use_https ? 's' : ''}://#{str}".split('/').first if str.present?
|
|
end
|
|
|
|
base_host = Rails.configuration.x.web_domain
|
|
|
|
assets_host = Rails.configuration.action_controller.asset_host
|
|
assets_host ||= host_to_url(base_host)
|
|
|
|
media_host = host_to_url(ENV['S3_ALIAS_HOST'])
|
|
media_host ||= host_to_url(ENV['S3_CLOUDFRONT_HOST'])
|
|
media_host ||= host_to_url(ENV['S3_HOSTNAME']) if ENV['S3_ENABLED'] == 'true'
|
|
media_host ||= assets_host
|
|
|
|
Rails.application.config.content_security_policy do |p|
|
|
p.base_uri :none
|
|
p.default_src :none
|
|
p.frame_ancestors :none
|
|
p.font_src :self, assets_host
|
|
p.img_src :self, :https, :data, :blob, assets_host
|
|
p.style_src :self, assets_host
|
|
p.media_src :self, :https, :data, assets_host
|
|
p.frame_src :self, :https
|
|
p.manifest_src :self, assets_host
|
|
p.form_action :self
|
|
p.child_src :self, :blob, assets_host
|
|
p.worker_src :self, :blob, assets_host
|
|
|
|
if Rails.env.development?
|
|
webpacker_urls = %w(ws http).map { |protocol| "#{protocol}#{Webpacker.dev_server.https? ? 's' : ''}://#{Webpacker.dev_server.host_with_port}" }
|
|
|
|
p.connect_src :self, :data, :blob, assets_host, media_host, Rails.configuration.x.streaming_api_base_url, *webpacker_urls
|
|
p.script_src :self, :unsafe_inline, :unsafe_eval, assets_host
|
|
else
|
|
p.connect_src :self, :data, :blob, assets_host, media_host, Rails.configuration.x.streaming_api_base_url
|
|
p.script_src :self, assets_host, "'wasm-unsafe-eval'"
|
|
end
|
|
end
|
|
|
|
# Report CSP violations to a specified URI
|
|
# For further information see the following documentation:
|
|
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
|
|
# Rails.application.config.content_security_policy_report_only = true
|
|
|
|
Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) }
|
|
|
|
Rails.application.config.content_security_policy_nonce_directives = %w(style-src)
|
|
|
|
Rails.application.reloader.to_prepare do
|
|
PgHero::HomeController.content_security_policy do |p|
|
|
p.script_src :self, :unsafe_inline, assets_host
|
|
p.style_src :self, :unsafe_inline, assets_host
|
|
end
|
|
|
|
PgHero::HomeController.after_action do
|
|
request.content_security_policy_nonce_generator = nil
|
|
end
|
|
|
|
if Rails.env.development?
|
|
LetterOpenerWeb::LettersController.content_security_policy do |p|
|
|
p.child_src :self
|
|
p.connect_src :none
|
|
p.frame_ancestors :self
|
|
p.frame_src :self
|
|
p.script_src :unsafe_inline
|
|
p.style_src :unsafe_inline
|
|
p.worker_src :none
|
|
end
|
|
|
|
LetterOpenerWeb::LettersController.after_action do |p|
|
|
request.content_security_policy_nonce_directives = %w(script-src)
|
|
end
|
|
end
|
|
end
|