Check Content-Type header for OPTIONS requests (#428)

Author: Flixt

lib/committee/schema_validator/open_api_3/request_validator.rb

@@ -21,8 +21,8 @@ def call(request, path_params, query_params, body_params, headers)
         private
 
         def check_content_type(request, content_type)
-          # support post, put, patch only
-          return true unless request.post? || request.put? || request.patch?
+          # support post, put, patch, options only
+          return true unless request.post? || request.put? || request.patch? || request.options?
           return true if @operation_object.valid_request_content_type?(content_type)
           return true if @operation_object.optional_body? && empty_request?(request)
 

test/schema_validator/open_api_3/request_validator_test.rb

@@ -95,6 +95,13 @@ def app
       assert_equal 400, last_response.status
     end    
 
+    it "validates content_type for option request" do
+      @app = new_rack_app(check_content_type: true, schema: open_api_3_schema)
+      header "Content-Type", "text/html"
+      options "/validate", "{}"
+      assert_equal 400, last_response.status
+    end
+
     def new_rack_app(options = {})
       Rack::Builder.new {
         use Committee::Middleware::RequestValidation, options