#399

backend/app/services/post_import_runner.rb

@@ -22,6 +22,7 @@ class PostImportRunner
     raise ArgumentError, '取込項目が不正です．' unless (attributes.keys - ATTRIBUTE_KEYS).empty?
     raise ArgumentError, '取込項目が大きすぎます．' if attributes.values.any? { _1.to_s.bytesize > PostImportSourceParser::MAX_CELL_BYTES }
     raise ArgumentError, 'URL が長すぎます．' if row['url'].to_s.bytesize > PostImportSourceParser::MAX_CELL_BYTES
+    validate_tag_sources!(row['tag_sources'])
     preview = PostImportPreviewer.new(parsed: { columns: [], rows: [] }, url_column: 0,
                                       mappings: {}, existing: @existing).preview_rows(
                                           rows: [{ source_row: row['source_row'], url: row['url'],
@@ -46,4 +47,14 @@ class PostImportRunner
     Rails.logger.error("post_import_runner_failure #{ { error: e.class.name, message: e.message }.to_json }")
     { source_row: row['source_row'], status: 'failed', errors: { base: ['登録中にエラーが発生しました．'] } }
   end
+
+  def validate_tag_sources! sources
+    return if sources.blank?
+
+    sources = sources.to_h
+    raise ArgumentError unless (sources.keys - %w[automatic mapped fixed manual]).empty?
+    raise ArgumentError unless sources.values.all?(String)
+    raise ArgumentError if sources.values.any? { _1.bytesize > PostImportSourceParser::MAX_CELL_BYTES }
+    raise ArgumentError if sources.values.sum(&:bytesize) > PostImportSourceParser::MAX_CELL_BYTES
+  end
 end