Initial commit

app/models/concerns/trusty_agent_validator.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+# User agent validator
+class TrustyAgentValidator < ActiveModel::EachValidator
+  def validate_each(record, _attribute, value)
+    browser = Browser.new(value)
+    return if browser.known?
+
+    return record.data = { note: 'Detected suspicious browser' }.to_json if record.data.nil?
+
+    record.data = JSON.parse(record.data).merge(note: 'Detected suspicious browser').to_json
+  end
+end