Initial commit

app/models/concerns/data_is_json_validator.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+# Data json validation
+class DataIsJsonValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, data)
+    return if data.nil?
+
+    unless validate_data_is_json!(data)
+      record.errors.add(attribute, :invalid_format, message: 'data is not json compatible string')
+    end
+  end
+
+  def validate_data_is_json!(data)
+    begin
+      JSON.parse(data)
+      true
+    rescue JSON::ParserError => e
+      false
+    end
+  end
+end

app/models/concerns/encryptable.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Encryptable
+  extend ActiveSupport::Concern
+
+  class_methods do
+    def attr_encrypted(*attributes)
+      attributes.each do |attribute|
+        define_method("#{attribute}=".to_sym) do |value|
+          return if value.nil?
+
+          self.public_send(
+            "#{attribute}_encrypted=".to_sym,
+            EncryptionService.encrypt(value)
+          )
+        end
+
+        define_method(attribute) do
+          value = self.public_send("#{attribute}_encrypted".to_sym)
+          EncryptionService.decrypt(value) if value.present?
+        end
+      end
+    end
+  end
+end

app/models/concerns/iso8601_time_format.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+# Convert time to utc 8601
+module Iso8601TimeFormat
+  extend ActiveSupport::Concern
+
+  def format_iso8601_time(time)
+    utc_time = time.respond_to?(:utc) ? time.utc : time
+    utc_time&.iso8601
+  end
+end

app/models/concerns/model_caching.rb

@@ -0,0 +1,23 @@
+module ModelCaching
+  extend ActiveSupport::Concern
+
+  def write_cache(action, value, expiration_time)
+    Rails.cache.write(cache_key_generator(action), value, expires_in: expiration_time.seconds)
+  end
+
+  def read_cache(action)
+    Rails.cache.read(cache_key_generator(action))
+  end
+
+  def delete_cache(action)
+    Rails.cache.delete(cache_key_generator(action))
+  end
+
+  private
+
+  def cache_key_generator(action)
+    class_name = self.class.name.to_s
+    object_id = id.to_s
+    "#{class_name}_#{object_id}_#{action}"
+  end
+end

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