add json export

Author: oreoshake

lib/secure_headers/headers/content_security_policy.rb

@@ -2,6 +2,7 @@
 require 'base64'
 require 'securerandom'
 require 'user_agent_parser'
+require 'json'
 
 module SecureHeaders
   class ContentSecurityPolicyBuildError < StandardError; end
@@ -166,6 +167,11 @@ def value
       end
     end
 
+    def to_json
+      build_value
+      @config.to_json
+    end
+
     private
 
     def add_script_hashes

spec/lib/secure_headers/headers/content_security_policy_spec.rb

@@ -56,6 +56,12 @@ def request_for user_agent, request_uri=nil, options={:ssl => false}
       end
     end
 
+    it "exports a policy to JSON" do
+      policy = ContentSecurityPolicy.new(default_opts)
+      expected = %({"default_src":["https:"],"script_src":["'unsafe-inline'","'unsafe-eval'","https:","data:"],"style_src":["'unsafe-inline'","https:","about:"],"img_src":["https:","data:"]})
+      expect(policy.to_json).to eq(expected)
+    end
+
     context "when using hash sources" do
       it "adds hashes and unsafe-inline to the script-src" do
         policy = ContentSecurityPolicy.new(default_opts.merge(:script_hashes => ['sha256-abc123']))