add uploader

app/uploaders/simple_forms_api/form_remediation/uploader.rb

@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+require 'simple_forms_api/form_remediation/configuration/base'
+
+module SimpleFormsApi
+  module FormRemediation
+    class Uploader < CarrierWave::Uploader::Base
+      include UploaderVirusScan
+
+      class << self
+        def s3_settings
+          config = Configuration::Base.new
+          config.s3_settings
+        end
+
+        def new_s3_resource
+          client = Aws::S3::Client.new(region: s3_settings.region)
+          Aws::S3::Resource.new(client:)
+        end
+
+        def get_s3_link(file_path)
+          new_s3_resource.bucket(s3_settings.bucket)
+                         .object(file_path)
+                         .presigned_url(:get, expires_in: 30.minutes.to_i)
+        end
+      end
+
+      def size_range
+        (1.byte)...(150.megabytes)
+      end
+
+      # Allowed file types, including those specific to benefits intake
+      def extension_allowlist
+        %w[bmp csv gif jpeg jpg json pdf png tif tiff txt zip]
+      end
+
+      def initialize(directory:, config: Configuration::Base.new)
+        raise 'The S3 directory is missing.' if directory.blank?
+
+        @config = config
+        @directory = directory
+
+        super()
+        set_storage_options!
+      end
+
+      def store_dir
+        @directory
+      end
+
+      private
+
+      def set_storage_options!
+        settings = @config.s3_settings
+
+        self.aws_credentials = { region: settings.region }
+        self.aws_acl = 'private'
+        self.aws_bucket = settings.bucket
+        self.aws_attributes = { server_side_encryption: 'AES256' }
+        self.class.storage = :aws
+      end
+    end
+  end
+end