mirror of https://github.com/tootsuite/mastodon
111 lines
3.9 KiB
Ruby
111 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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# Define an application-wide content security policy
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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
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def host_to_url(str)
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return if str.blank?
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uri = Addressable::URI.parse("http#{Rails.configuration.x.use_https ? 's' : ''}://#{str}")
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uri.path += '/' unless uri.path.blank? || uri.path.end_with?('/')
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uri.to_s
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end
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base_host = Rails.configuration.x.web_domain
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assets_host = Rails.configuration.action_controller.asset_host
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assets_host ||= host_to_url(base_host)
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media_host = host_to_url(ENV['S3_ALIAS_HOST'])
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media_host ||= host_to_url(ENV['S3_CLOUDFRONT_HOST'])
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media_host ||= host_to_url(ENV['AZURE_ALIAS_HOST'])
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media_host ||= host_to_url(ENV['S3_HOSTNAME']) if ENV['S3_ENABLED'] == 'true'
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media_host ||= assets_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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