修复：代码溯源pdf下载

app/services/trace/pdf_report_service.rb

@@ -1,6 +1,7 @@
 # 代码溯源 导出pdf
 require 'open-uri'
 require 'fileutils'
+require 'zip'
 
 class Trace::PdfReportService < Trace::ClientService
   
@@ -15,8 +16,16 @@ class Trace::PdfReportService < Trace::ClientService
     content = open("#{domain}#{base_url}#{url}?task_id=#{task_id}", "Authorization" => token)
     if content.is_a?(Tempfile)
       check_file_path
-      IO.copy_stream(content, "#{save_path}/#{task_id}.pdf")
-      return {code: 200, download_url: "/trace_task_results/#{task_id}.pdf"}
+      IO.copy_stream(content, "#{save_path}/report.zip")
+      Zip::File.open("#{save_path}/report.zip") do |zip_file|
+        zip_file.each do |f| 
+          name = f.name.force_encoding('utf-8')
+          next unless name == '/report.pdf'
+          fpath = File.join(save_path, name)
+          zip_file.extract(f, fpath) 
+        end
+      end
+      return {code: 200, download_url: "/trace_task_results/#{task_id}/report.pdf"}
     else 
       return {code: 404}
     end
@@ -28,7 +37,7 @@ class Trace::PdfReportService < Trace::ClientService
   end
 
   def save_path 
-    "public/trace_task_results"
+    "public/trace_task_results/#{task_id}"
   end
 
   def url