91 lines
3.5 KiB
Python
91 lines
3.5 KiB
Python
import base64
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import json
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import re
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from json import JSONDecodeError
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from django.contrib import messages
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from django.core.files.base import ContentFile
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from django.http import HttpResponseRedirect, HttpResponse
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from django.shortcuts import render
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from django.urls import reverse_lazy
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from django.utils.translation import gettext as _
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from rest_framework.renderers import JSONRenderer
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from cookbook.forms import ExportForm, ImportForm
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from cookbook.helper.permission_helper import group_required
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from cookbook.models import Recipe
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from cookbook.serializer import RecipeSerializer
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@group_required('user')
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def import_recipe(request):
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if request.method == "POST":
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form = ImportForm(request.POST)
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if form.is_valid():
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try:
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data = json.loads(form.cleaned_data['recipe'])
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sr = RecipeSerializer(data=data)
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if sr.is_valid():
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sr.validated_data['created_by'] = request.user
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recipe = sr.save()
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if data['image']:
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try:
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fmt, img = data['image'].split(';base64,')
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ext = fmt.split('/')[-1]
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recipe.image = ContentFile(base64.b64decode(img), name=f'{recipe.pk}.{ext}') # TODO possible security risk, maybe some checks needed
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recipe.save()
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except ValueError:
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pass
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messages.add_message(request, messages.SUCCESS, _('Recipe imported successfully!'))
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return HttpResponseRedirect(reverse_lazy('view_recipe', args=[recipe.pk]))
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else:
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messages.add_message(request, messages.ERROR, _('Something went wrong during the import!'))
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messages.add_message(request, messages.WARNING, sr.errors)
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except JSONDecodeError:
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messages.add_message(request, messages.ERROR, _('Could not parse the supplied JSON!'))
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else:
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form = ImportForm()
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return render(request, 'import.html', {'form': form})
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@group_required('user')
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def export_recipe(request):
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context = {}
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if request.method == "POST":
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form = ExportForm(request.POST)
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if form.is_valid():
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recipe = form.cleaned_data['recipe']
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if recipe.internal:
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export = RecipeSerializer(recipe).data
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if recipe.image and form.cleaned_data['image']:
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with open(recipe.image.path, 'rb') as img_f:
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export['image'] = f'data:image/png;base64,{base64.b64encode(img_f.read()).decode("utf-8")}'
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json_string = JSONRenderer().render(export).decode("utf-8")
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if form.cleaned_data['download']:
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response = HttpResponse(json_string, content_type='text/plain')
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response['Content-Disposition'] = f'attachment; filename={recipe.name}.json'
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return response
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context['export'] = re.sub(r'"id":([0-9])+,', '', json_string)
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else:
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form.add_error('recipe', _('External recipes cannot be exported, please share the file directly or select an internal recipe.'))
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else:
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form = ExportForm()
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recipe = request.GET.get('r')
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if recipe:
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if re.match(r'^([0-9])+$', recipe):
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if recipe := Recipe.objects.filter(pk=int(recipe)).first():
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form = ExportForm(initial={'recipe': recipe})
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context['form'] = form
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return render(request, 'export.html', context)
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