281 lines
8.9 KiB
Python
Executable File

from django.db.models import Count, Max
from django.http import HttpResponse, HttpResponseBadRequest, Http404
from django.views.decorators.cache import cache_control
from django.views.generic import TemplateView
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework.decorators import action
from rest_framework.filters import OrderingFilter, SearchFilter
from rest_framework.mixins import (
DestroyModelMixin,
ListModelMixin,
RetrieveModelMixin,
UpdateModelMixin
)
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.viewsets import (
GenericViewSet,
ModelViewSet,
ReadOnlyModelViewSet
)
import documents.index as index
from paperless.db import GnuPG
from paperless.views import StandardPagination
from .filters import (
CorrespondentFilterSet,
DocumentFilterSet,
TagFilterSet,
DocumentTypeFilterSet,
LogFilterSet
)
from .forms import UploadForm
from .models import Correspondent, Document, Log, Tag, DocumentType
from .serialisers import (
CorrespondentSerializer,
DocumentSerializer,
LogSerializer,
TagSerializer,
DocumentTypeSerializer
)
class IndexView(TemplateView):
template_name = "index.html"
class CorrespondentViewSet(ModelViewSet):
model = Correspondent
queryset = Correspondent.objects.annotate(
document_count=Count('documents'),
last_correspondence=Max('documents__created')).order_by('name')
serializer_class = CorrespondentSerializer
pagination_class = StandardPagination
permission_classes = (IsAuthenticated,)
filter_backends = (DjangoFilterBackend, OrderingFilter)
filterset_class = CorrespondentFilterSet
ordering_fields = (
"name",
"matching_algorithm",
"match",
"document_count",
"last_correspondence")
class TagViewSet(ModelViewSet):
model = Tag
queryset = Tag.objects.annotate(
document_count=Count('documents')).order_by('name')
serializer_class = TagSerializer
pagination_class = StandardPagination
permission_classes = (IsAuthenticated,)
filter_backends = (DjangoFilterBackend, OrderingFilter)
filterset_class = TagFilterSet
ordering_fields = ("name", "matching_algorithm", "match", "document_count")
class DocumentTypeViewSet(ModelViewSet):
model = DocumentType
queryset = DocumentType.objects.annotate(
document_count=Count('documents')).order_by('name')
serializer_class = DocumentTypeSerializer
pagination_class = StandardPagination
permission_classes = (IsAuthenticated,)
filter_backends = (DjangoFilterBackend, OrderingFilter)
filterset_class = DocumentTypeFilterSet
ordering_fields = ("name", "matching_algorithm", "match", "document_count")
class DocumentViewSet(RetrieveModelMixin,
UpdateModelMixin,
DestroyModelMixin,
ListModelMixin,
GenericViewSet):
model = Document
queryset = Document.objects.all()
serializer_class = DocumentSerializer
pagination_class = StandardPagination
permission_classes = (IsAuthenticated,)
filter_backends = (DjangoFilterBackend, SearchFilter, OrderingFilter)
filterset_class = DocumentFilterSet
search_fields = ("title", "correspondent__name", "content")
ordering_fields = (
"id",
"title",
"correspondent__name",
"document_type__name",
"created",
"modified",
"added",
"archive_serial_number")
def update(self, request, *args, **kwargs):
response = super(DocumentViewSet, self).update(
request, *args, **kwargs)
index.add_or_update_document(self.get_object())
return response
def destroy(self, request, *args, **kwargs):
index.remove_document_from_index(self.get_object())
return super(DocumentViewSet, self).destroy(request, *args, **kwargs)
def file_response(self, pk, disposition):
doc = Document.objects.get(id=pk)
if doc.storage_type == Document.STORAGE_TYPE_UNENCRYPTED:
file_handle = doc.source_file
else:
file_handle = GnuPG.decrypted(doc.source_file)
response = HttpResponse(file_handle, content_type=doc.mime_type)
response["Content-Disposition"] = '{}; filename="{}"'.format(
disposition, doc.file_name)
return response
@action(methods=['post'], detail=False)
def post_document(self, request, pk=None):
# TODO: is this a good implementation?
form = UploadForm(data=request.POST, files=request.FILES)
if form.is_valid():
form.save()
return Response("OK")
else:
return HttpResponseBadRequest(str(form.errors))
@action(methods=['get'], detail=True)
def metadata(self, request, pk=None):
try:
doc = Document.objects.get(pk=pk)
return Response({
"paperless__checksum": doc.checksum,
"paperless__mime_type": doc.mime_type,
"paperless__filename": doc.filename,
})
except Document.DoesNotExist:
raise Http404()
@action(methods=['get'], detail=True)
def preview(self, request, pk=None):
try:
response = self.file_response(pk, "inline")
return response
except (FileNotFoundError, Document.DoesNotExist):
raise Http404()
@action(methods=['get'], detail=True)
@cache_control(public=False, max_age=315360000)
def thumb(self, request, pk=None):
try:
return HttpResponse(Document.objects.get(id=pk).thumbnail_file,
content_type='image/png')
except (FileNotFoundError, Document.DoesNotExist):
raise Http404()
@action(methods=['get'], detail=True)
def download(self, request, pk=None):
try:
return self.file_response(pk, "attachment")
except (FileNotFoundError, Document.DoesNotExist):
raise Http404()
class LogViewSet(ReadOnlyModelViewSet):
model = Log
queryset = Log.objects.all()
serializer_class = LogSerializer
pagination_class = StandardPagination
permission_classes = (IsAuthenticated,)
filter_backends = (DjangoFilterBackend, OrderingFilter)
filterset_class = LogFilterSet
ordering_fields = ("created",)
class SearchView(APIView):
permission_classes = (IsAuthenticated,)
def __init__(self, *args, **kwargs):
super(SearchView, self).__init__(*args, **kwargs)
self.ix = index.open_index()
def add_infos_to_hit(self, r):
doc = Document.objects.get(id=r['id'])
return {'id': r['id'],
'highlights': r.highlights("content", text=doc.content),
'score': r.score,
'rank': r.rank,
'document': DocumentSerializer(doc).data,
'title': r['title']
}
def get(self, request, format=None):
if 'query' in request.query_params:
query = request.query_params['query']
try:
page = int(request.query_params.get('page', 1))
except (ValueError, TypeError):
page = 1
if page < 1:
page = 1
with index.query_page(self.ix, query, page) as (result_page,
corrected_query):
return Response(
{'count': len(result_page),
'page': result_page.pagenum,
'page_count': result_page.pagecount,
'corrected_query': corrected_query,
'results': list(map(self.add_infos_to_hit, result_page))})
else:
return Response({
'count': 0,
'page': 0,
'page_count': 0,
'results': []})
class SearchAutoCompleteView(APIView):
permission_classes = (IsAuthenticated,)
def __init__(self, *args, **kwargs):
super(SearchAutoCompleteView, self).__init__(*args, **kwargs)
self.ix = index.open_index()
def get(self, request, format=None):
if 'term' in request.query_params:
term = request.query_params['term']
else:
return HttpResponseBadRequest("Term required")
if 'limit' in request.query_params:
limit = int(request.query_params['limit'])
if limit <= 0:
return HttpResponseBadRequest("Invalid limit")
else:
limit = 10
return Response(index.autocomplete(self.ix, term, limit))
class StatisticsView(APIView):
permission_classes = (IsAuthenticated,)
def get(self, request, format=None):
return Response({
'documents_total': Document.objects.all().count(),
'documents_inbox': Document.objects.filter(
tags__is_inbox_tag=True).distinct().count()
})