class ActionDispatch::ContentSecurityPolicy::Middleware
Public Class Methods
Source
# File lib/action_dispatch/http/content_security_policy.rb, line 33 def initialize(app) @app = app end
Public Instance Methods
Source
# File lib/action_dispatch/http/content_security_policy.rb, line 37 def call(env) status, headers, _ = response = @app.call(env) # Returning CSP headers with a 304 Not Modified is harmful, since nonces in the # new CSP headers might not match nonces in the cached HTML. return response if status == 304 return response if policy_present?(headers) request = ActionDispatch::Request.new env if policy = request.content_security_policy nonce = request.content_security_policy_nonce nonce_directives = request.content_security_policy_nonce_directives context = request.controller_instance || request headers[header_name(request)] = policy.build(context, nonce, nonce_directives) end response end
Private Instance Methods
Source
# File lib/action_dispatch/http/content_security_policy.rb, line 59 def header_name(request) if request.content_security_policy_report_only ActionDispatch::Constants::CONTENT_SECURITY_POLICY_REPORT_ONLY else ActionDispatch::Constants::CONTENT_SECURITY_POLICY end end
Source
# File lib/action_dispatch/http/content_security_policy.rb, line 67 def policy_present?(headers) headers[ActionDispatch::Constants::CONTENT_SECURITY_POLICY] || headers[ActionDispatch::Constants::CONTENT_SECURITY_POLICY_REPORT_ONLY] end