hometown/config/initializers/content_security_policy.rb
Claire cbd0ee1d07
Update Mastodon to Rails 6.1 (#15910)
* Update devise-two-factor to unreleased fork for Rails 6 support

Update tests to match new `rotp` version.

* Update nsa gem to unreleased fork for Rails 6 support

* Update rails to 6.1.3 and rails-i18n to 6.0

* Update to unreleased fork of pluck_each for Ruby 6 support

* Run "rails app:update"

* Add missing ActiveStorage config file

* Use config.ssl_options instead of removed ApplicationController#force_ssl

Disabled force_ssl-related tests as they do not seem to be easily testable
anymore.

* Fix nonce directives by removing Rails 5 specific monkey-patching

* Fix fixture_file_upload deprecation warning

* Fix yield-based test failing with Rails 6

* Use Rails 6's index_with when possible

* Use ActiveRecord::Cache::Store#delete_multi from Rails 6

This will yield better performances when deleting an account

* Disable Rails 6.1's automatic preload link headers

Since Rails 6.1, ActionView adds preload links for javascript files
in the Links header per default.

In our case, that will bloat headers too much and potentially cause
issues with reverse proxies. Furhermore, we don't need those links,
as we already output them as HTML link tags.

* Switch to Rails 6.0 default config

* Switch to Rails 6.1 default config

* Do not include autoload paths in the load path
2021-03-24 10:44:31 +01:00

62 lines
2.4 KiB
Ruby

# 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}" unless str.blank?
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
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
p.child_src :self, :blob, assets_host
p.worker_src :self, :blob, 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
p.child_src :self, :blob, assets_host
p.worker_src :self, :blob, assets_host
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)
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