WIP Fix PII badger background job

lib/excel_analyzer/jobs/pii_badger_job.rb

@@ -9,8 +9,14 @@ module ExcelAnalyzer
   class PIIBadgerJob < ApplicationJob
     queue_as :excel_analyzer
 
+    attr_reader :attachment_blob, :foi_attachment
+
     def perform(attachment_blob)
-      attachment_blob.open(tmpdir: ENV['EXCEL_ANALYZER_TMP_DIR']) do |file|
+      @attachment_blob = attachment_blob
+      @foi_attachment = FoiAttachment.joins(:file_blob).
+        find_by(active_storage_blobs: { id: attachment_blob })
+
+      begin
         cmd = [
           ENV['EXCEL_ANALYZER_PII_BADGER_COMMAND'], '--file', file.path
         ].join(' ')
@@ -20,9 +26,49 @@ def perform(attachment_blob)
         attachment_blob.update(metadata: attachment_blob.metadata.merge(
           pii_badger: pii_badger_metadata
         ))
+      ensure
+        file.close!
       end
 
       ExcelAnalyzer::RepublishOrReportJob.perform_later(attachment_blob)
     end
+
+    private
+
+    def name
+      [
+        "ActiveStorage-#{attachment_blob.id}-",
+        attachment_blob.filename.extension_with_delimiter
+      ]
+    end
+
+    def file
+      @file ||= (
+        file = Tempfile.open(name, ENV['EXCEL_ANALYZER_TMP_DIR'])
+        file.binmode
+        file.write(foi_attachment.unmasked_body)
+        file.flush
+        file.rewind
+        file
+      )
+    end
+  end
+end
+
+module ActiveStorage
+  class Service::MirrorService
+    def download(key)
+      primary.download(key)
+    rescue ActiveStorage::FileNotFoundError => primary_error
+      mirrors.each_with_index do |mirror, index|
+        begin
+          data = mirror.download(key)
+          return data
+        rescue ActiveStorage::FileNotFoundError => mirror_error
+          next
+        end
+      end
+      raise primary_error
+    end
   end
 end