kopia lustrzana https://github.com/OpenDroneMap/WebODM
75 wiersze
2.5 KiB
Python
75 wiersze
2.5 KiB
Python
import os
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import mimetypes
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from worker.celery import app as celery
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from rest_framework.views import APIView
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from rest_framework.response import Response
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from rest_framework import status, permissions
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from django.http import FileResponse
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from django.http import HttpResponse
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from wsgiref.util import FileWrapper
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class CheckTask(APIView):
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permission_classes = (permissions.AllowAny,)
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def get(self, request, celery_task_id=None):
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res = celery.AsyncResult(celery_task_id)
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if not res.ready():
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return Response({'ready': False}, status=status.HTTP_200_OK)
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else:
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result = res.get()
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if result.get('error', None) is not None:
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msg = self.on_error(result)
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return Response({'ready': True, 'error': msg})
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if self.error_check(result) is not None:
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msg = self.on_error(result)
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return Response({'ready': True, 'error': msg})
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return Response({'ready': True})
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def on_error(self, result):
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return result['error']
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def error_check(self, result):
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pass
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class GetTaskResult(APIView):
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permission_classes = (permissions.AllowAny,)
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def get(self, request, celery_task_id=None):
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res = celery.AsyncResult(celery_task_id)
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if res.ready():
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result = res.get()
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file = result.get('file', None) # File path
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output = result.get('output', None) # String/object
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else:
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return Response({'error': 'Task not ready'})
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if file is not None:
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filename = os.path.basename(file)
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filesize = os.stat(file).st_size
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f = open(file, "rb")
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# More than 100mb, normal http response, otherwise stream
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# Django docs say to avoid streaming when possible
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stream = filesize > 1e8
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if stream:
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response = FileResponse(f)
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else:
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response = HttpResponse(FileWrapper(f),
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content_type=(mimetypes.guess_type(filename)[0] or "application/zip"))
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response['Content-Type'] = mimetypes.guess_type(filename)[0] or "application/zip"
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response['Content-Disposition'] = "attachment; filename={}".format(filename)
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response['Content-Length'] = filesize
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return response
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elif output is not None:
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return Response({'output': output})
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else:
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return Response({'error': 'Invalid task output (cannot find valid key)'})
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