91 lines
3.4 KiB
Python
91 lines
3.4 KiB
Python
from __future__ import absolute_import
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from django.core.exceptions import PermissionDenied
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from django.shortcuts import get_object_or_404
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from converter.exceptions import UnkownConvertError, UnknownFileFormat
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from converter.literals import (DEFAULT_FILE_FORMAT_MIMETYPE, DEFAULT_PAGE_NUMBER,
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DEFAULT_ROTATION, DEFAULT_ZOOM_LEVEL)
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from permissions.models import Permission
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from rest_framework import generics
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from rest_framework.response import Response
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from documents.conf.settings import (DISPLAY_SIZE, PREVIEW_SIZE, RECENT_COUNT,
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ROTATION_STEP, ZOOM_PERCENT_STEP, ZOOM_MAX_LEVEL,
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ZOOM_MIN_LEVEL)
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from rest_api.filters import MayanObjectPermissionsFilter
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from rest_api.permissions import MayanPermission
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from .models import StagingFolder
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from .serializers import (StagingFolderFileSerializer, StagingFolderSerializer,
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StagingSourceFileImageSerializer)
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class APIStagingSourceFileView(generics.GenericAPIView):
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"""
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Details of the selected staging file.
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"""
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serializer_class = StagingFolderFileSerializer
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def get(self, request, staging_folder_pk, encoded_filename):
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staging_folder = get_object_or_404(StagingFolder, pk=staging_folder_pk)
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return Response(StagingFolderFileSerializer(staging_folder.get_file(encoded_filename=encoded_filename), context={'request': request}).data)
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class APIStagingSourceListView(generics.ListAPIView):
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"""
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Returns a list of all the staging folders and the files they contain.
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"""
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serializer_class = StagingFolderSerializer
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queryset = StagingFolder.objects.all()
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class APIStagingSourceView(generics.RetrieveAPIView):
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"""
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Details of the selected staging folders and the files it contains.
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"""
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serializer_class = StagingFolderSerializer
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queryset = StagingFolder.objects.all()
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class APIStagingSourceFileImageView(generics.GenericAPIView):
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"""
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Image of the selected staging file.
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size -- 'x' seprated width and height of the desired image representation.
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page -- Page number of the staging file to be imaged.
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zoom -- Zoom level of the image to be generated, numeric value only.
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"""
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serializer_class = StagingSourceFileImageSerializer
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def get(self, request, staging_folder_pk, encoded_filename):
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staging_folder = get_object_or_404(StagingFolder, pk=staging_folder_pk)
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staging_file = staging_folder.get_file(encoded_filename=encoded_filename)
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size = request.GET.get('size', DISPLAY_SIZE)
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page = int(request.GET.get('page', DEFAULT_PAGE_NUMBER))
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zoom = int(request.GET.get('zoom', DEFAULT_ZOOM_LEVEL))
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if request.GET.get('as_base64', False):
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base64_version = True
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if zoom < ZOOM_MIN_LEVEL:
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zoom = ZOOM_MIN_LEVEL
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if zoom > ZOOM_MAX_LEVEL:
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zoom = ZOOM_MAX_LEVEL
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rotation = int(request.GET.get('rotation', DEFAULT_ROTATION)) % 360
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try:
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return Response({'status': 'success',
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'data': staging_file.get_image(size=size, page=page, zoom=zoom, rotation=rotation, as_base64=True)
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})
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except UnknownFileFormat as exception:
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return Response({'status': 'error', 'detail': 'unknown_file_format', 'message': unicode(exception)})
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except UnkownConvertError as exception:
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return Response({'status': 'error', 'detail': 'converter_error', 'message': unicode(exception)})
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