catstodon/config/initializers/content_security_policy.rb
Thibaut Girka 4a70792b4a Merge branch 'master' into glitch-soc/merge-upstream
Conflicts:
- `Gemfile.lock`:
  Not a real conflict, just a glitch-soc-only dependency too close to a
  dependency that got updated upstream. Updated as well.
- `app/models/status.rb`:
  Not a real conflict, just a change too close to glitch-soc-changed code
  for optionally showing boosts in public timelines.
  Applied upstream changes.
- `app/views/layouts/application.html.haml`:
  Upstream a new, static CSS file, conflict due to glitch-soc's theming
  system, include the file regardless of the theme.
- `config/initializers/content_security_policy.rb`:
  Upstream dropped 'unsafe-inline' from the 'style-src' directive, but
  both files are very different. Removed 'unsafe-inline' as well.
2020-05-10 16:19:56 +02:00

55 lines
2.2 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
if Rails.env.production?
assets_host = Rails.configuration.action_controller.asset_host || "https://#{ENV['WEB_DOMAIN'] || ENV['LOCAL_DOMAIN']}"
data_hosts = [assets_host]
if ENV['S3_ENABLED'] == 'true'
attachments_host = "https://#{ENV['S3_ALIAS_HOST'] || ENV['S3_CLOUDFRONT_HOST'] || ENV['S3_HOSTNAME'] || "s3-#{ENV['S3_REGION'] || 'us-east-1'}.amazonaws.com"}"
attachments_host = "https://#{Addressable::URI.parse(attachments_host).host}"
elsif ENV['SWIFT_ENABLED'] == 'true'
attachments_host = ENV['SWIFT_OBJECT_URL']
attachments_host = "https://#{Addressable::URI.parse(attachments_host).host}"
else
attachments_host = nil
end
data_hosts << attachments_host unless attachments_host.nil?
if ENV['PAPERCLIP_ROOT_URL']
url = Addressable::URI.parse(assets_host) + ENV['PAPERCLIP_ROOT_URL']
data_hosts << "https://#{url.host}"
end
data_hosts.concat(ENV['EXTRA_DATA_HOSTS'].split('|')) if ENV['EXTRA_DATA_HOSTS']
data_hosts.uniq!
Rails.application.config.content_security_policy do |p|
p.base_uri :none
p.default_src :none
p.frame_ancestors :none
p.script_src :self, assets_host
p.font_src :self, assets_host
p.img_src :self, :data, :blob, *data_hosts
p.style_src :self, assets_host
p.media_src :self, :data, *data_hosts
p.frame_src :self, :https
p.child_src :self, :blob, assets_host
p.worker_src :self, :blob, assets_host
p.connect_src :self, :blob, :data, Rails.configuration.x.streaming_api_base_url, *data_hosts
p.manifest_src :self, 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
PgHero::HomeController.content_security_policy do |p|
p.script_src :self, :unsafe_inline, assets_host
p.style_src :self, :unsafe_inline, assets_host
end