Add validating jsonb fields with json schema draft-07

app/validators/json_schema_validator.rb

@@ -12,6 +12,7 @@
 class JsonSchemaValidator < ActiveModel::EachValidator
   FILENAME_ALLOWED = /\A[a-z0-9_-]*\Z/.freeze
   FilenameError = Class.new(StandardError)
+  JSON_VALIDATOR_MAX_DRAFT_VERSION = 4
 
   def initialize(options)
     raise ArgumentError, "Expected 'filename' as an argument" unless options[:filename]
@@ -29,10 +30,18 @@ class JsonSchemaValidator < ActiveModel::EachValidator
   private
 
   def valid_schema?(value)
-    JSON::Validator.validate(schema_path, value)
+    if draft_version > JSON_VALIDATOR_MAX_DRAFT_VERSION
+      JSONSchemer.schema(Pathname.new(schema_path)).valid?(value)
+    else
+      JSON::Validator.validate(schema_path, value)
+    end
   end
 
   def schema_path
     Rails.root.join('app', 'validators', 'json_schemas', "#{options[:filename]}.json").to_s
   end
+
+  def draft_version
+    options[:draft] || JSON_VALIDATOR_MAX_DRAFT_VERSION
+  end
 end

changelogs/unreleased/263497-add-validating-json-schema-draft-7.yml

+---
+title: Add validating jsonb fields with json schema draft-07
+merge_request: 49451
+author:
+type: added

ee/app/models/vulnerabilities/finding.rb

@@ -92,7 +92,7 @@ module Vulnerabilities
 
     validates :metadata_version, presence: true
     validates :raw_metadata, presence: true
-    validates :details, json_schema: { filename: 'vulnerability_finding_details' }
+    validates :details, json_schema: { filename: 'vulnerability_finding_details', draft: 7 }
 
     delegate :name, :external_id, to: :scanner, prefix: true, allow_nil: true
 

spec/validators/json_schema_validator_spec.rb

@@ -29,6 +29,36 @@ RSpec.describe JsonSchemaValidator do
           expect(build_report_result.errors.full_messages).to eq(["Data must be a valid json schema"])
         end
       end
+
+      context 'when draft is > 4' do
+        let(:validator) { described_class.new(attributes: [:data], filename: "build_report_result_data", draft: 6) }
+
+        it 'uses JSONSchemer to perform validations' do
+          expect(JSONSchemer).to receive(:schema).with(Pathname.new(Rails.root.join('app', 'validators', 'json_schemas', 'build_report_result_data.json').to_s)).and_call_original
+
+          subject
+        end
+      end
+
+      context 'when draft is <= 4' do
+        let(:validator) { described_class.new(attributes: [:data], filename: "build_report_result_data", draft: 4) }
+
+        it 'uses JSON::Validator to perform validations' do
+          expect(JSON::Validator).to receive(:validate).with(Rails.root.join('app', 'validators', 'json_schemas', 'build_report_result_data.json').to_s, build_report_result.data)
+
+          subject
+        end
+      end
+
+      context 'when draft value is not provided' do
+        let(:validator) { described_class.new(attributes: [:data], filename: "build_report_result_data") }
+
+        it 'uses JSON::Validator to perform validations' do
+          expect(JSON::Validator).to receive(:validate).with(Rails.root.join('app', 'validators', 'json_schemas', 'build_report_result_data.json').to_s, build_report_result.data)
+
+          subject
+        end
+      end
     end
 
     context 'when filename is not set' do