Change take data for log file

esi/scraper/service.py

 from datetime import datetime
+import io
 from urllib.request import urlopen
 from scrapyd_api import ScrapydAPI
 from .models import Job

esi/scraper/views.py

-import io
 from datetime import datetime, time
 from django.shortcuts import render, HttpResponseRedirect, reverse, HttpResponse
 from django.http import JsonResponse, FileResponse
@@ -22,6 +21,11 @@ class JobListView(ListView):
         super(JobListView, self).__init__()
 
     def get(self, request, *args, **kwargs):
+        action = request.GET.get('action')
+        job_id = request.GET.get('id')
+        if action:
+            log = self.service.get_log(job_id)
+            return HttpResponse(log, content_type='text/plain')
         self.service.update_jobs_status()
         j = Job.objects.all().order_by('-create_time')
         jobs = {
@@ -55,7 +59,7 @@ class JobListView(ListView):
         if action == 'restart':
             return JsonResponse(self.service.restart_job(job_id))
         if action == 'log':
-            log = io.BytesIO(self.service.get_log(job_id))
+            log = self.service.get_log(job_id)
             # return HttpResponse(log, content_type='text/plain')
             return FileResponse(log)