CSP exploration

Author: JPrevost

Gemfile

@@ -14,6 +14,7 @@ gem 'mitlibraries-theme', git: 'https://github.com/mitlibraries/mitlibraries-the
 gem 'puma'
 gem 'rack-attack'
 gem 'rails', '~> 7.1.0'
+gem 'redis'
 gem 'sentry-rails'
 gem 'sentry-ruby'
 gem 'sprockets-rails'

Gemfile.lock

@@ -285,6 +285,10 @@ GEM
     rake (13.2.1)
     rdoc (6.12.0)
       psych (>= 4.0.0)
+    redis (5.4.0)
+      redis-client (>= 0.22.0)
+    redis-client (0.24.0)
+      connection_pool
     regexp_parser (2.10.0)
     reline (0.6.0)
       io-console (~> 0.5)
@@ -419,6 +423,7 @@ DEPENDENCIES
   puma
   rack-attack
   rails (~> 7.1.0)
+  redis
   rubocop
   rubocop-rails
   selenium-webdriver

config/environments/production.rb

@@ -66,6 +66,7 @@
 
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
+  config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'] }
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter = :resque

config/initializers/content_security_policy.rb

@@ -4,22 +4,22 @@
 # See the Securing Rails Applications Guide for more information:
 # https://guides.rubyonrails.org/security.html#content-security-policy-header
 
-# Rails.application.configure do
-#   config.content_security_policy do |policy|
-#     policy.default_src :self, :https
-#     policy.font_src    :self, :https, :data
-#     policy.img_src     :self, :https, :data
-#     policy.object_src  :none
-#     policy.script_src  :self, :https
-#     policy.style_src   :self, :https
-#     # Specify URI for violation reports
-#     # policy.report_uri "/csp-violation-report-endpoint"
-#   end
-#
-#   # Generate session nonces for permitted importmap, inline scripts, and inline styles.
-#   config.content_security_policy_nonce_generator = ->(request) { request.session.id.to_s }
-#   config.content_security_policy_nonce_directives = %w(script-src style-src)
-#
-#   # Report violations without enforcing the policy.
-#   # config.content_security_policy_report_only = true
-# end
+Rails.application.configure do
+  config.content_security_policy do |policy|
+    policy.default_src :self, :https
+    policy.font_src    :self, :https, :data
+    policy.img_src     :self, :https, :data
+    policy.object_src  :none
+    policy.script_src  :self, :https, :unsafe_inline
+    policy.style_src   :self, :https, :unsafe_inline
+    # Specify URI for violation reports
+    # policy.report_uri "/csp-violation-report-endpoint"
+  end
+  #
+  # Generate session nonces for permitted importmap, inline scripts, and inline styles.
+  # config.content_security_policy_nonce_generator = ->(request) { request.session.id.to_s }
+  # config.content_security_policy_nonce_directives = %w(script-src style-src)
+  #
+  # Report violations without enforcing the policy.
+  config.content_security_policy_report_only = true
+end